I fought for 8 hours yesterday getting my Java FX (11) Standalone JAR to work at all. I finally did, and now when I run it via java -jar myjar.jar (with path info for fx components), it at least "works" inasmuch as I can see my "own application's" error messages and message boxes lol.
This app needs to connect to SQL Server. It works FINE in IDE (IntelliJ). For JAR, I did not include the SQL Server driver as it is signed. No big deal - figure I'd just deploy it too and put it in the path. However, the JAR file can not "see" the driver (or the class - not sure) when run. Here is the info:
SQL Server driver is mssql-jdbc-8.2.2.jre11.jar
My connection Code is:
connection = DriverManager.getConnection(connectString); and connectString = "jdbc:sqlserver://localhost:1433;database=mydatabase;userName=myuser;password=mypword"
Again - this WORKS FINE in IDE. However, run from jar, it gets "java.sql.SQLException: No suitable driver found for jdbc:sqlserver://localhost:1433;database=mydatabase;userName=myuser;password=mypword"
I have put the mssql-jdbc-8.2.2.jre11.jar into the same directory as the jar. I have included it in the MANIFEST.MF with Class-Path: mssql-jdbc-8.2.2.jre11.jar and also tried it in a "lib" subdirectory from the jar file with Class-Path: /lib. Nothing Works! I just keep getting the "no suitable driver" error. The full manifest file looks like:
Manifest-Version: 1.0
Class-Path: /lib
Main-Class: com.product.Launcher
Here is the full call from command line that actually launches the app: java --module-path C:/Users/KMatson/Documents/JetBrains/openjfx-11.0.2_windows-x64_bin-sdk/javafx-sdk-11.0.2/lib/ --add-modules javafx.controls,javafx.fxml,javafx.graphics -jar myjar.jar This does run the app, but as soon as app tries to connect to SQL, I get the error.
Also tried the old-style Class.forName("com.microsoft.sqlserver.jdbc.SQLServerDriver") to no avail even thought it should not be necessary, and isn't needed run from IDE.
This is driving me crazy and has taken WAY more time than it should. I'm new to all this, and hope it is something simple I am overlooking or unaware of. Any help MUCH appreciated.
OK - here is the (intermediate) answer that worked for me. Apparently, having the "--module path" declaration in the cmd line was overriding the Class-path in the MANIFEST somehow. Either that or something was - dunno - didn't think i had a "modular" project. I'm not building from Maven, and module-info is not active.
Anyway - I simply put the driver jar in the "module path" I use from cmd, and it worked. I'm now trying to figure out how to make this thing "double clickable" so i don't have to issue from cmd line or use a batch file.
Related
I'd like to schedule a KNIME workflow. The workflow does its job very good as long as I start it from the KNIME GUI application. When I execute the same workflow via command line, java complains that com.microsoft.sqlserver.jdbc.SQLServerDriver
could not be found (ClassNotFoundException).
I invoke it via:
"D:\Progamme\KNIME\knime.exe" -nosplash -application -consoleLog org.knime.product.KNIME_BATCH_APPLICATION -preferences="absolutepathto\preferences.epf" -workflowDir="absolutepathto\workflow"
Since the error message signals missing content in the java CLASSPATH I also tried to add the parameters
-vmargs -classpath .;"absolutepathto/sqljdbc42.jar"
But still I earn a java slap, pointing to the same error...
I also tried to run the command from within the knime.exe's directory and I also tried to add the JAR file to Preferences -> Java -> Build Path -> Classpath Variable / User Libraries (referenced via the -preference argument). But that had no effect.
Did anybody face the same problems? Maybe with other third party JARs?
It is all about a Database connector that is configured like this:
Does the integrated security maybe force a misleading error?
System spec: KNIME 3.2.2 on Windows Server 2008 R2
Update - extract from preferences file
/configuration/org.eclipse.core.net/org.eclipse.core.net.hasMigrated=true
/configuration/org.eclipse.ui.ide/MAX_RECENT_WORKSPACES=10
/configuration/org.eclipse.ui.ide/RECENT_WORKSPACES=<list of some workspaces>
/configuration/org.eclipse.ui.ide/RECENT_WORKSPACES_PROTOCOL=3
/configuration/org.eclipse.ui.ide/SHOW_RECENT_WORKSPACES=false
/configuration/org.eclipse.ui.ide/SHOW_WORKSPACE_SELECTION_DIALOG=true
Is there maybe a problem due to the fact that it is a shared KNIME instance among several users and the command line execution does not know which workspace has to be chosen? Is the workspace somehow needed and why?
Partial Solution:
I finally managed it but I don't know exactly why it works now. What I did was to load a fresh portable version of KNIME and ran the same commands only changing the executable path to the new portable version. Before that I started the portable version once to set the workspace directory and register the database driver in preferences dialog and .ini file, nothing else, same configuration so far as the shared KNIME instance. What I am really wondering abpout is that from now on the commands are also working with the shared KNIME instance. I really don't know what caused the change that let KNIME find the driver class.
Info
Because I encountered a few more problems within shared environment in KNIME command line mode, that led to undeterministic execution results, I wrote a little .NET library. This gives me more flexibility/control over the workflow execution (which returncodes and error messages occured and so on). You can find it here if you're interested: KnimeNet
I took a very minimal approach:
cd "C:\Program Files\KNIME"
.\knime -nosplash -noexit -consoleLog -reset -application org.knime.product.KNIME_BATCH_APPLICATION -workflowFile="D:\Work\Knime Workflows\Output\CMD_Test.knwf" -preferences="D:\Work\Knime Workflows\Output\CMD_Test.epf"
Stackoverflow helped me a lot to reach that point but now I'm completely stuck, here is my problem :
I'm currently developing several tests to check a website. I code with Java in Eclipse, using testNG plugin with ReportNG for report, all of this using Windows 7 pro.
My tests work, and my report is well generated, so now I have to put it on Jenkins for my company so they will run my tests every X hours.
In order to launch my tests, I have made a file, named Run.bat, which runs the Java code, I tested it and it works, here is the code :
Run.bat
set classpath=blex_test_v1\bin;blex_test_v1\lib\*
java org.testng.TestNG blex_test_v1\blex_test_v1.xml
I now try to launch the tests on Jenkins, creating a new job and configuring it with the build section :
Run.bat
And this is my problem, I've tried everything (relative path, only the name of the file etc...) I always get this error :
java.io.IOException: Cannot run program "cmd" (in directory "/var/jenkins_home/jobs/blex_functional_test/workspace"): error=2, No such file or directory
So I checked the Jenkins workspace but my Run.bat is in it :
Workspace
I have read that Jenkins is in Linux so it might cause problem with bat files, so I tried to create a script but I didn't succeed either ..
So my question is : How can I run my test on Jenkins using my file Run.bat ? What am I doing wrong here ?
Thanks a lot !
Finally I can add an answer :
Jenkins is installed on a Unix machine so you can't run a bat file, it has to be a bash script.
To create a bash script, refer here.
Then you have to make sure that the plugin Xvfb is installed (and works) on the computer where Jenkins is installed.
I use testNG with reportNg and it doesn't work with the last firefox version so you I use firefox v34.0.5 and this version must be installed also on the Jenkins computer.
If you want to open the report after the execution, install another plugin and configure it (report HTML or something like that)
God it took me about a week but it's good to see it working !
I'm here again with another case that is getting me out my mind.
So, this is happening, I'm trying to run an executable java class(.jar) as a Windows Service, and all my attempts failed so far. To make it a little easier, I turned my jar into a batch file, wich only executes the jar in background, here is the code:
start "" javaw -jar C:\LocalService.jar
The batch works fine. However I have tried to install this batch as a service by using the next line in cmd:
sc create "LocalService" binPath= "C:\LocalService.bat"
The Service installs correctly, but as soon as I try to start it, it pops up an error (The code error is 1053, says something about the service did not start correctly)
Also, I have try with a software called NSSM (non-sucking service manager) It installs fine too, but the service does not start either.
Do you guys know what am I missing?
By the way, I'm doing all this on Windows 7 Professional.
Thanks!
thanks for your comments
Both tools didnt work for me, sadly. However I was able to do it with a software called Java Service Wrapper. This is not a free software, so I needed to buy a license to get it to work.
The steps were simple:
1.-Create a folder with the name of the service, then inside add 4 folders: lib,bin,logs,conf
2.-On the lib folder you have to copy your jar and also the wrapper.jar and wrapper.dll (these last two are in the zip you download from the website)
3.-Copy 4 files to the bin folder: InstallApp-NT.bat.in, App.bat.in, UnintstallApp-NT.bat.in and wrapper.exe (this last one is the one that defines your license, if you can get a file wrapper.exe from somebody else who had paid a license it will work fine. These file also came in the zip from the website) Remove the .in from the batch files
4.-The most tricky step is this: You have to copy from the wrapper's folder called conf a file called wrapper.conf.in Remove the .in extension and edit it with a tex editor. The most important lines you have to edit are:
wrapper.java.command=C:\Program Files (x86)\Java\jre7\bin\java //Specify JRE Path. Will work with eviroment variable
wrapper.java.mainclass=org.tanukisoftware.wrapper.WrapperJarApp //Choosing this class means your are using a .jar file to execute when the service starts
wrapper.java.classpath.1=C:\LocalService\lib\wrapper.jar //This one is constant.
wrapper.java.classpath.2=C:\LocalService\lib\LocalService.jar //This is the path to your executable jar
wrapper.java.library.path.1=C:\LocalService\lib //Path to your own lib folder (the you created at the begining)
wrapper.app.parameter.1=C:\LocalService\lib\LocalService.jar // again the path to your jar
Then just execute the InstallApp-NT.bat and start the service and your are done
It worked to me with absolute paths, however according to documentation it will work fine with relative path too.
This is how I solved my problem and I hope someone with the same issue will find this helpful
See you next time!
I'm getting errors when I attempt to run my project deployed to app engine. I see issues like:
java.lang.ClassNotFoundException: com.seattleglassware.AuthServletSupport$$anonfun$finishOAuth2Dance$1$$anonfun$apply$33$$anonfun$apply$34$$anonfun$apply$37$$anonfun$apply$40$$anonfun$apply$41$$anonfun$apply$42$$anonfun$apply$45$$anonfun$apply$47$$anonfun$apply$48$$anonfun$apply$49
The class name looks reasonable (well, for certain values of reasonable - this is code generated by the Scala compiler). I see the file in my local web/WEB-INF/classes/com directory and I can decompile it with javap (so I don't think it's corrupt or anything silly like that.) Everything works fine running on a local debug server.
Even more strange, I can pour all the .class files in web/WEB-INF/classes into a jar file like this:
cd to the web/WEB-INF/classes directory
jar cf ../lib/classes.jar .
And now, if I upload the project (pressing the deploy button in Eclipse), I don't see those ClassNotFoundException errors. Delete the jar file, re-upload the project, get the errors again.
I'm wondering if there's some sort of limit on the names of .class files? Or something else happening in the deployment process that's causing this to happen?
EDIT: running from the command line made this much more clear (using maven now):
SEVERE: Invalid character in filename: WEB-INF/classes/com/seattleglassware/AuthServletSupport$$anonfun$finishOAuth2Dance$1$$anonfun$apply$33$$anonfun$apply$34$$anonfun$apply$37$$anonfun$apply$40$$anonfun$apply$41$$anonfun$apply$42$$anonfun$apply$45$$anonfun$apply$47$$anonfun$apply$48$$anonfun$apply$49.class
But it still looks to me like that's a valid filename.
The inclusion of "special" characters in the file name may be the issue here.
There is currently an open issue regarding "special" characters in project file names.
Issue 2211: Special characters are not supported in the filenames in the project
The original issue was reported by a Python App Engine user, however if you look in the comments you'll see that it apparently affects Java users as well.
So I followed the tutorial on the H2 Documentation page and used the "Connecting to a Database using JDBC" method of connecting to the database. I First added the h2-*.jar file to the Lib Folder (through Netbeans) and used the following to make the connection to my database I previously created.
Class.forName("org.h2.Driver");
connection = DriverManager.getConnection("jdbc:h2:~/" + DatabaseName);
This turned out to work in the IDE environment, however when I attempted to run the application directly from the jar executable I get the following error:
java.lang.ClassNotFoundException: org.h2.Driver ...
this error occurs at the Class.forName() class loader. So I did a little looking around and found that this was a prominent problem. One solution people use was to extract the class Loader from the current Thread as so:
Thread t = Thread.currentThread();
ClassLoader cl = t.getContextClassLoader();
cl.getClass().getClassLoader();
Class toRun = cl.loadClass("org.h2.Driver");
Unfortunately this seems to still result in the same error, so i'm wondering what i'm doing wrong. Should I be doing something to make sure the Driver is in the class path? I have no I idea how if that's the case.
Thanks!
You need to add the h2-*.jar file to the classpath when running the application, for example using
java -cp h2*.jar -jar yourApp.jar